turboturtle III

hi guys, im new here so i dont know if this is the right place to post. i read your forums a lot to fix my stang, there is good stuff here

well, after going about 110 mph for the first time in a long time, my engine will shake after the radiator fan turns on. i need help plz

turboturtle III

on another note, car runs just as good as it did before

uberstang1

Only when the fan turns on?

turboturtle III

yes

cliffyk

Does the idle speed drop when it "shakes"?

turboturtle III

nope, everything runs perfect, the fan seems to just shake the whole car when it starts :s

cliffyk

Must be damaged in some manner; out of balance? Broken blade maybe?

JC316

+1. There might be a slim chance that it's a weak alternator, but with the engine speed not changing, I highly doubt it.

uberstang1

Must be physical damage on the fan somehow like cliff said.

cliffyk

OP, can you get some photos of the fan with the blades rotated to 2 or 3 positions so we can see the whole thing?